Background: Blood Gas Analysis using arterial blood is the one of important examination on the
laboratory. The result from analysis can give information about clinical condition of the patient. The
phlebotomist often make the wrong procedure including sampling from the vena bloodstream, which
make the results is not suitable with patient condition. Coronary heart disease is the most common
heart disease which one of the therapy can be treated by CABG surgery. BGA examination post
CABG is really needed for giving information about histology oxygenation.
Purpose: This study is to known about is there any correlation between the value of BGA arteri and
venous; and can we predict the BGA arterial value from BGA venous.
Methods and Sample: Post CABG patient on RSUP Dr. Kariadi was taken for BGA examination
arterial blood and venous blood using GEM Premier 3000 BGA automation. Data analysis use
Pearson correlation when the distribution data is normal; and Spearman when the distribution data is
abnormal.
Results: There are correlation between pH, pCO2 and HCO3 arterial and venous (p<0,05). There is no
correlation between PO2 arterial and venous (p>0,05). Based on this study, it can be predicted the
value BGA arterial using BGA venous: pH Arteri = -0,17 + 1,042 (pH venous); PCO2 Arteri = -1,333
+ 0,854 (PCO2 Venous) ; HCO3 Arteri = 3,475 + 0,762 (HCO3 Venous)
Conclusion: BGA value using venous sample can be used to predict BGA arteri.